JPS5514264A - Method of manufacturing formed article of foaming thermoplastic resin - Google Patents

Method of manufacturing formed article of foaming thermoplastic resin

Info

Publication number
JPS5514264A
JPS5514264A JP8705478A JP8705478A JPS5514264A JP S5514264 A JPS5514264 A JP S5514264A JP 8705478 A JP8705478 A JP 8705478A JP 8705478 A JP8705478 A JP 8705478A JP S5514264 A JPS5514264 A JP S5514264A
Authority
JP
Japan
Prior art keywords
resin
cavity
filling
kinds
thermoplastic resin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP8705478A
Other languages
Japanese (ja)
Other versions
JPS619136B2 (en
Inventor
Shigeo Nishikawa
Hiroshi Matsui
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Chemical BASF Co Ltd
Original Assignee
Mitsubishi Chemical BASF Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Chemical BASF Co Ltd filed Critical Mitsubishi Chemical BASF Co Ltd
Priority to JP8705478A priority Critical patent/JPS5514264A/en
Publication of JPS5514264A publication Critical patent/JPS5514264A/en
Publication of JPS619136B2 publication Critical patent/JPS619136B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B29C44/0461—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities by having different chemical compositions in different places, e.g. having different concentrations of foaming agent, feeding one composition after the other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/44—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form
    • B29C44/445—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form in the form of expandable granules, particles or beads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3415—Heating or cooling
    • B29C44/3426—Heating by introducing steam in the mould

Landscapes

  • Molding Of Porous Articles (AREA)

Abstract

PURPOSE:To obtain said formed article whose particular part is formed of resin grains having desired properties and whose boundary layers of different kinds of resin are clear, by filling two or more kinds of foaming thermoplastic resin grains into a forming metal mould in sequence by a particular method. CONSTITUTION:Two or more kinds of resin grains of different materials, expansion ratios and colours are used. Arranging metal moulds 1 and 2 in a state with a cracking C and jetting air alone into a cavity a from a filling gun 9, the material in a hopper 8 is filled into a lower concave cavity a1 with a filling gun 10. Next, the material in a hopper 7 is filled into a space including an upper concave part a2, and in the state with the filling ports 3 and 4 closed, the moulds are clamped, then steam is supplied into the cavity a to heat-foam the resin materials and they are formed into one solid article of desired form.
JP8705478A 1978-07-19 1978-07-19 Method of manufacturing formed article of foaming thermoplastic resin Granted JPS5514264A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8705478A JPS5514264A (en) 1978-07-19 1978-07-19 Method of manufacturing formed article of foaming thermoplastic resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8705478A JPS5514264A (en) 1978-07-19 1978-07-19 Method of manufacturing formed article of foaming thermoplastic resin

Publications (2)

Publication Number Publication Date
JPS5514264A true JPS5514264A (en) 1980-01-31
JPS619136B2 JPS619136B2 (en) 1986-03-20

Family

ID=13904218

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8705478A Granted JPS5514264A (en) 1978-07-19 1978-07-19 Method of manufacturing formed article of foaming thermoplastic resin

Country Status (1)

Country Link
JP (1) JPS5514264A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6061215A (en) * 1983-09-13 1985-04-09 Sekisui Plastics Co Ltd Filling process of raw material in foamed molding
JPS61213129A (en) * 1985-03-18 1986-09-22 Meiwa Sangyo Kk Manufacture of resin bead foam molded member
JPS62124932A (en) * 1985-11-25 1987-06-06 Yuusui Kasei Kogyo Kk Simultaneous foam molding method by different kind of raw material
JPH03173630A (en) * 1989-12-01 1991-07-26 Sanki Kogyo Kk Manufacture of formed plastic molded body
JP2010118357A (en) * 2010-01-29 2010-05-27 Toshiba Lighting & Technology Corp Led lighting device and lighting fitting
JP2021024213A (en) * 2019-08-07 2021-02-22 コンフォートフォーム株式会社 Light-weight high-strength laminate of expanded resin particle

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61167219U (en) * 1985-04-02 1986-10-17
JPS6395625U (en) * 1986-12-05 1988-06-20

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54116062A (en) * 1978-03-02 1979-09-10 Sekisui Plastics Coomolding method using raw material being different in properties and expanding magnification

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54116062A (en) * 1978-03-02 1979-09-10 Sekisui Plastics Coomolding method using raw material being different in properties and expanding magnification

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6061215A (en) * 1983-09-13 1985-04-09 Sekisui Plastics Co Ltd Filling process of raw material in foamed molding
JPH0361578B2 (en) * 1983-09-13 1991-09-20 Sekisui Plastics
JPS61213129A (en) * 1985-03-18 1986-09-22 Meiwa Sangyo Kk Manufacture of resin bead foam molded member
JPS62124932A (en) * 1985-11-25 1987-06-06 Yuusui Kasei Kogyo Kk Simultaneous foam molding method by different kind of raw material
JPH0355299B2 (en) * 1985-11-25 1991-08-22
JPH03173630A (en) * 1989-12-01 1991-07-26 Sanki Kogyo Kk Manufacture of formed plastic molded body
JP2010118357A (en) * 2010-01-29 2010-05-27 Toshiba Lighting & Technology Corp Led lighting device and lighting fitting
JP2021024213A (en) * 2019-08-07 2021-02-22 コンフォートフォーム株式会社 Light-weight high-strength laminate of expanded resin particle

Also Published As

Publication number Publication date
JPS619136B2 (en) 1986-03-20

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